Ottawa weather live forecast

Tomorrow's maximum temperature in Ottawa is expected to be 29°C.

5-day weather forecast updated at 04:00 on Monday 20th May 2024 GMT

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The 5-day weather forecast for Ontario (Ottawa) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Ottawa weather forecast by day

Below are the detailed weather forecasts for Ottawa for the next 5 days.

Ottawa weather for Sunday 19th May 2024

Expect clear skies in Ottawa, Ontario with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

  • 29°C maximum temperature29
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Clear skies
    clear skies
  • 14 hours of bright sunshine14
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 10 kph from the South10
    kph wind from S

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Ottawa weather for Monday 20th May 2024

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

  • 30°C maximum temperature30
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 11 kph from the South-West11
    kph wind from SW

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Ottawa weather for Tuesday 21st May 2024

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 15 kph from the south-west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 62% chance of some rain62
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 15 kph from the South-West15
    kph wind from SW

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Ottawa weather for Wednesday 22nd May 2024

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 60% chance of some rain and a moderate breeze of 21 kph from the south-west.

  • 31°C maximum temperature31
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 60% chance of some rain60
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 21 kph from the South-West21
    kph wind from SW

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Ottawa weather for Thursday 23rd May 2024

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 10-20 mm of rainfall expected with 42% chance of some rain and a moderate breeze of 25 kph from the south-west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 42% chance of some rain42
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 25 kph from the South-West25
    kph wind from SW

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  • Find lowest fares on flights to Canada, USA & beyond
  • Select a departure point to see the available routes & prices
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Metric (°C / mm)  |  Imperial (°F / inches)

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